Some argue that participating in elections might be viewed as an endorsement of the existence of Israel - others that voting is the only way to exercise influence over how the state behaves and where it spends it money.

BBC: Israel elections quandary for marginalised Arab citizens

But stripped of that benign cover, the operative doctrine is that your life is not your own, that selfless service to the needs of others is the only justification for your existence.

FORBES: Obama Hears Your Whining, And He's Here to Help You Out

That said, the image could help explain why others might have had difficulty identifying the existence and motives of this terrorist cell.

CNN: A new plague

This leads others to decry the existence of such polarized debates.

FORBES: Rachel Levy on Framing the Education Reform Debate

With regard to minimizing the impact of groundings caused by engine problems, the existence of two competing engines could help in some situations and hurt in others.

FORBES: Why Adam Smith Isn't Welcome In The Defense Industry

Our Droids, iPhones, and Kindles depend on spectrum to talk to the world, and the existence of robust competition among wireless network operators give Apple, Google, Amazon, and others leverage to build the kinds of devices they want and to get them into the hands of consumers.

FORBES: Is Blocking Mobile Merger An "Assault on Innovation?"

According to Greek philosophy, one of the defining characteristics of humanity that distinguishes it from other forms of existence is a deeply engrained social instinct, the need for association and affiliation with others, a need for friendship.

FORBES: The Ten Golden Rules on Living the Good Life